| 摘要 |
A technique is provided for automatic frequency offset correction in a wireless communication system. After demodulating and decoding a received signal in a receiver, channel estimation is also performed. The technique further includes a frequency correction method in a W-CDMA system, the method comprising:
(a) defining and storing in memory a plurality of control words for controlling automatic frequency correction (S11);
(b) for each of said plurality of control words:
(1) performing a correlation between the data in each received slot and a primary synchronization code in a matched filter;
(2) summing and averaging the results of the correlations;
(3) determining the correlation peak in a peak detection device (S12,S13);
(c) comparing the correlation peaks to determine the maximum peak and storing the corresponding control word (S14); and
(e) performing slot synchronization with the corresponding control word (S15);
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